Upcoming episodes, programme details and where to watch over the next seven days. All times are UK time.
When detective Carl Mehta got assigned to investigate the disappearance of teenager Alice Gross, everyone feared the worst. The largest search operation in years was launched. S1 Ep3
The Murder of Michael Menson: Current and former New Scotland Yard detectives open their files to tell the inside stories of how they caught some of the capital's most notorious killers.
When police found a man on fire, they assumed he did that to himself. His family campaigned for justice for two years and New Scotland Yard re-investigated the case. S1 Ep4